Here is a super cool 6" WW2 fighter.

Just saying 6" WW2 fighter puts it in the rare group, but this knife has a Springfield butt cap and nut on an Orlando blade.

How did that happen?

Gaddis states on page 101:

"By 10 November (1943), things were moving along well enough for Larsen to send a detailed report covering sales of an additional 200 knives. They enclosed a royalty check for the whole 263 knives sold to that date, less a deduction for 100 butt caps and nuts sent to Bo."

The knife is in a Southern Saddlery sheath.